Sound triggered LED project

[Gryd3]

input 100V-240V
output 12V DC 2000mA
If the circuit requires more than that I'll find something else, everything sort of spins around the design of the circuit so I'll try to get whatever needed to support it. Just do the circuit as you want.

That should be more than enough.. You may need to keep to less than 60-70 groups of LEDs.

 

[softtissue]

60-70 groups of leds with 4 in each group? that's a good amount. so how's the circuit progressing? I've got some chips from the store already, the leds will arrive on or before next wednesday.

 

[Gryd3]

I need to tack on the shift registers and make sure the LEDs will progress as expected.
I did not get much time today, and it's the end of my night so I will try again tomorrow.

You got the IC's I listed earlier?

 

[softtissue]

Yeah the ones you listed, I can get as many as the project requires.

 

[Gryd3]

So. This is what I have so far.
It's not electronic noobie friendly, as I have not written down pin numbers.
I sampled the circuit for 5 seconds, and in that time 12 signals would be send down the neuron.
It is currently pushing the signal down the neuron 9 groups a second, so of course, if your neuron has 10 groups of LEDs it will take just over a second to travel down the length. This can be adjusted by playing with the timer!
There will also be a couple adjustable resistors that will let you change the sensitivity. The Test song I used, at 50% manages to manages to trigger 2-4 groups in a row. This would look like a longer signal being sent down the line. This can be adjusted as well!

If @KrisBlueNZ happens to stop in here, I do have a question about further managing the signal. Or any other tricks you may have
Blue is the audio file, red is the Bass signal, and green is the signal that will be sent to the first group of LEDs.
When using a shift register, how would I move the reference... ie, anything above 4V would be 'high'
Currently, only thing I can think of is using another opamp as a comparator.

 

[softtissue]

ohh my... not noob friendly at all hahaha. But still getting excited seeing the progress. Ok gonna go work on my sculpture then

 

[softtissue]

Umm 1 quick question. if I use 200 LEDs, 3.2V each how do I know if the 12V 2A supply is enough to run them?

 

[Gryd3]

Umm 1 quick question. if I use 200 LEDs, 3.2V each how do I know if the 12V 2A supply is enough to run them?

depends how they are connected...
If each LED is connected in parallel, you would need 4A... but if the LED strings are made mostly of 3 LEDs, that will drop to about 1.3A

 

[softtissue]

ok I have 2 AC adapters 12V 1A and 12V 2A. I did some research and realized that the resistors would be hotter with a higher power supply, 2A vs 1.3A is quite a big gap. would the 1A be able to take care of 200 leds in a parallel circuit? they get dimmer?

 

[Gryd3]

ok I have 2 AC adapters 12V 1A and 12V 2A. I did some research and realized that the resistors would be hotter with a higher power supply, 2A vs 1.3A is quite a big gap. would the 1A be able to take care of 200 leds in a parallel circuit? they get dimmer?

Resistors get hot based on the voltage across them, and current through them.
A 12V power supply, even if it's rated for 10,000Amps, will work fine for you. Your circuit will dictate how many Amps it pulls from the supply. That is merely what the supply is capable up to.
The voltage part is the less forgiving part, and must always be matched to what the circuit is designed for. So if we are using 12V, I know I can string a few leds together.. if the voltage goes down too much I have to design your circuit to power each light by itself.

Questions?

 

[softtissue]

i was just curious hahha because I have a 12v 1A lying around so I just want to find out if I can use it and save the 122A for other project that may need bigger supply. Thanks!